There are 210 4 digit combinations and 5040 different 4 digit codes.
a lot
56 combinations. :)
12
How many different outfits are possible from six shirts, four pairs of pants, and five pairs of socks?
6
With 3 nodes, there are 5 possible ordered trees. This can be calculated using the formula for the number of ordered trees: n^(n-2), where n is the number of nodes. In this case, 3^(3-2) = 3^1 = 3.
42http://en.wikipedia.org/wiki/Catalan_number
13 different kind of trees
As far as i Know, just one.Do you know any formula to calculate how many binary search trees are possible?--answer:(2n C n) / (n+1) = ( factorial (2n) / factorial (n) * factorial (2n - n) ) / ( n + 1 )where 'n' is number of element (integer/string)like:N Number of BST1 12 23 54 145 426 132and so on
Enlarged lymph nodes can be caused from many things. This includes an illness or infection. Some cancers can also cause swollen lymph nodes. See a doctor as soon as possible to rule out serious problems.
It's not possible to inventory the precise number of trees.
There are about 250 different kinds of trees in the Amazon Rainforest
About 400 different species of trees
150 nodes
3 nodes in 4f
There are Two factor trees for 20